Leonard Wei-Chang Liang, M.D.
Specialist · Los Angeles, CA
Leonard Wei-Chang Liang, M.D. is a specialist with a practice address in Los Angeles, California, and NPI 1134131196, issued on Aug 11, 2006. Check the license (California A66024, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Leonard Wei-Chang Liang
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A66024 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1513 S Grand Ave Ste 300, Los Angeles, CA 90015
- Phone
- (213) 749-0662
- Enumerated
- Aug 11, 2006
- Record last updated
- Aug 12, 2025
- Fax
- (213) 748-7254
- Medicare enrollment
- Enrolled (PECOS I20040903000973); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1996
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 1513 S Grand Ave Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Duarte, MDTrauma Surgery Physician1497773519
Verify Leonard Wei-Chang Liang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A66024Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average specialist in 2024
362 Medicare Part D claims for 94 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Tamsulosin Hcl84 claims
- Finasteride46 claims
- Gemtesa31 claims
- Tolterodine Tartrate Er22 claims
- Xtandi18 claims
- Oxybutynin Chloride Er16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,152.48
28 payments; by number, the most common kind was food and beverage; the largest payer was Procept BioRobotics Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Leonard Wei-Chang Liang among 5,749 specialist records in California
Leonard Wei-Chang Liang, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1996 · median 1989 among the 1,075 with a school on file
- Record last updated2025 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Los Angeles → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Thomas Bogaard, MDLos Angeles, CA 900151861438004
- Steven Brown, M.D.Los Angeles, CA 900151093735623
- Brian Solberg, M.D.Los Angeles, CA 900151396729216
- Mary ChristianLos Angeles, CA 900161245409168
- Trammell JonesLos Angeles, CA 900141669312310
- Latonya MooreLos Angeles, CA 900161427227339
- Paula WilliamsLos Angeles, CA 900161003246638
- Eben Feinstein, M.D.Los Angeles, CA 900171578553905
Common questions
What is Leonard Wei-Chang Liang, M.D.'s NPI number?
Leonard Wei-Chang Liang, M.D.'s National Provider Identifier (NPI) is 1134131196, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Wei-Chang Liang, M.D. located?
The NPPES record lists a practice address at 1513 S Grand Ave Ste 300, Los Angeles, CA, 90015. Phone: (213) 749-0662. Providers update this record themselves, so call before visiting.
How can I verify Leonard Wei-Chang Liang, M.D.'s license?
NPPES lists California license number A66024, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Leonard Wei-Chang Liang, M.D. prescribe under Medicare Part D?
In 2024, Leonard Wei-Chang Liang, M.D. had 362 Medicare Part D claims for 94 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.